EP0802189B1 - Verfahren zur Herstellung von Arylamiden heteroaromatischer Carbonsäuren - Google Patents

Verfahren zur Herstellung von Arylamiden heteroaromatischer Carbonsäuren Download PDF

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Publication number
EP0802189B1
EP0802189B1 EP97105060A EP97105060A EP0802189B1 EP 0802189 B1 EP0802189 B1 EP 0802189B1 EP 97105060 A EP97105060 A EP 97105060A EP 97105060 A EP97105060 A EP 97105060A EP 0802189 B1 EP0802189 B1 EP 0802189B1
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Prior art keywords
nitrogen
process according
optionally substituted
phenyl
group
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English (en)
French (fr)
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EP0802189A3 (de
EP0802189A2 (de
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Jean-Paul Dr. Roduit
Georges Kalbermatten
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Lonza AG
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Lonza AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/26—Radicals substituted by halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/61—Halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/62—Oxygen or sulfur atoms
    • C07D213/63—One oxygen atom
    • C07D213/64—One oxygen atom attached in position 2 or 6
    • C07D213/643—2-Phenoxypyridines; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/81—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/81—Amides; Imides
    • C07D213/82—Amides; Imides in position 3
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32—One oxygen, sulfur or nitrogen atom
    • C07D239/34—One oxygen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52—Two oxygen atoms
    • C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
    • C07D239/545—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
    • C07D241/10—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D241/14—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D241/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D253/00—Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group C07D251/00
    • C07D253/02—Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group C07D251/00 not condensed with other rings
    • C07D253/06—1,2,4-Triazines
    • C07D253/065—1,2,4-Triazines having three double bonds between ring members or between ring members and non-ring members
    • C07D253/07—1,2,4-Triazines having three double bonds between ring members or between ring members and non-ring members with hetero atoms, or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/40—Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
    • B01J2231/42—Catalytic cross-coupling, i.e. connection of previously not connected C-atoms or C- and X-atoms without rearrangement
    • B01J2231/4205—C-C cross-coupling, e.g. metal catalyzed or Friedel-Crafts type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/82—Metals of the platinum group
    • B01J2531/824—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts

Definitions

  • the present invention relates to a process for the preparation of heteroaromatic arylamides Carboxylic acids by reaction of heteroaromatic halogen compounds with carbon monoxide and aromatic amines in the presence of a catalyst and a base.
  • Numerous compounds of this structure are important herbicides (WO-A 94/27974, EP-A 0 053 011, EP -A 0 447 004).
  • the synthesis of these known compounds usually starts from the corresponding carboxylic acids or carboxylic acid derivatives (acid chlorides, esters, nitriles). However, these are often difficult to access and therefore expensive.
  • the object of the present invention was therefore to provide an alternative method which originates from more easily accessible starting materials.
  • halogen compounds of the general formula wherein A 1 to A 5 have the meanings mentioned above and X is chlorine, bromine or iodine, with carbon monoxide and a primary or secondary amine of the general formula R 6 -NH-R 7 wherein R 6 and R 7 have the abovementioned meanings, in the presence of a base in good to almost quantitative yield directly to the desired products (I) react when used as a catalyst, a complex of palladium with a diphosphine of the general formula R 8 R 9 P- [CH 2 ] n -PR 10 R 11
  • R 8 to R 11 independently of one another are phenyl or substituted phenyl and n is 3 or 4.
  • C 1-4 alkyl is here and below to be understood as meaning all linear or branched primary, secondary or tertiary alkyl groups having up to 4 carbon atoms.
  • Aromatic or heteroaromatic radicals here and hereinafter are in particular mono- or polycyclic systems, for example phenyl, naphthyl , Biphenylyl, anthracenyl, furyl, pyrrolyl, pyrazolyl, thiophenyl, pyridyl, indolyl or quinolinyl.
  • substituents for example lower alkyl groups such as methyl, halogenated alkyl groups such as trifluoromethyl, lower alkoxy groups such as methoxy, or lower alkylthio - (alkanesulfanyl) or alkanesulfonyl groups such as methylthio or ethanesulfonyl.
  • Substituted phenyl are in particular groups such as ( p -) fluorophenyl, ( p -) methoxyphenyl, ( p -) tolyl or ( p -) to understand trifluoromethylphenyl.
  • halogen compounds (II) used as starting material are known compounds or can be prepared analogously to known compounds. Many such Compounds are disclosed, for example, in US Pat. No. 4,254,125 and in EP-A 0 001 187.
  • halogen compounds (II) in which the group of the formula -OR is bonded to a carbon atom adjacent to a ring nitrogen atom are advantageously prepared by reacting a dihalide of the general formula wherein A 1 to A 5 have the meanings given above, with the proviso that one of the radicals R 1 to R 5 is replaced on a carbon atom adjacent to a ring nitrogen atom by Z, which is chlorine, bromine or iodine, and X is independently chlorine , Bromine or iodine, with an aromatic or heteroaromatic hydroxy compound of the general formula RAW wherein R has the meaning given above, is reacted.
  • the process according to the invention is preferably suitable for preparing such amides (I) in which A 2 is nitrogen and forms a pyridine ring with the other ring members.
  • Particular preference is given to those amides (I) in which R 1 is a group of the formula -OR, where R has the meaning given above.
  • amides (I) in which A 'is nitrogen and forms a pyridine ring with the other ring members those in which A 1 and A 5 are nitrogen and form a pyrimidine ring with the other ring members, those in which A 1 and A 4 are nitrogen and form a pyrazine ring with the other ring members, as well as those in which A 1 , A 3 and A 5 are nitrogen and form a 1,3,5-triazine ring with the other ring members.
  • those amides in which R 2 is a group of the formula -OR, where R has the meaning given above are again particularly preferred.
  • amides (I) are also preferred those in which R is an optionally substituted phenyl group. This applies in particular to the abovementioned amides with pyridine, pyrimidine, pyrazine or 1,3,5-triazine ring in which R 1 or R 2 is a group of the formula -OR. Also preferred are those amides in which R 6 is hydrogen and R 7 is an optionally substituted phenyl group
  • the catalytically active palladium-diphosphine complex is advantageously formed in situ by adding palladium in finely divided elemental form (eg palladium on activated charcoal), a Pd (II) salt (eg the chloride or the acetate), or a suitable Pd (II) complex (eg, dichloro-bis (triphenylphosphine) palladium (II)) is reacted with the diphosphine.
  • the palladium is preferably used in an amount of 0.02 to 0.2 mol% Pd (II) or 0.5 to 2 mol% Pd (0) (as Pd / C), in each case based on the halogen compound (II) used.
  • the diphosphine is advantageously used in excess (based on Pd), preferably in an amount of 0.2 to 5 mol%, likewise based on the halogen compound (II)
  • solvents both relatively non-polar, such as toluene or xylene, and polar, such as acetonitrile, tetrahydrofuran or N , N- dimethylacetamide can be used
  • the base used is preferably a relatively weak base. This one needs in the The solvents used are not soluble. Carbonates, for example, are very suitable such as sodium carbonate or potassium carbonate or acetates such as sodium acetate. With the The latter base gave very good results.
  • the reaction temperature is preferably 80 to 250 ° C.
  • the carbon monoxide pressure is preferably from 1 to 50 bar.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Pyridine Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP97105060A 1996-03-28 1997-03-25 Verfahren zur Herstellung von Arylamiden heteroaromatischer Carbonsäuren Expired - Lifetime EP0802189B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730651T SI0802189T1 (en) 1996-03-28 1997-03-25 Process of preparation of Arylamides heteroaromatic Carboxylic acids

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH80696 1996-03-28
CH80696 1996-03-28
CH806/96 1996-03-28

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EP0802189A2 EP0802189A2 (de) 1997-10-22
EP0802189A3 EP0802189A3 (de) 1999-01-13
EP0802189B1 true EP0802189B1 (de) 2004-03-24

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US (1) US6635766B1 (cs)
EP (1) EP0802189B1 (cs)
JP (1) JPH1017552A (cs)
KR (1) KR100673348B1 (cs)
CN (1) CN1100760C (cs)
AT (1) ATE262511T1 (cs)
CA (1) CA2200898C (cs)
CZ (1) CZ294344B6 (cs)
DE (1) DE59711437D1 (cs)
DK (1) DK0802189T3 (cs)
ES (1) ES2215204T3 (cs)
HU (1) HU225024B1 (cs)
NO (1) NO307703B1 (cs)
PL (1) PL189843B1 (cs)
PT (1) PT802189E (cs)
SI (1) SI0802189T1 (cs)
SK (1) SK283920B6 (cs)

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WO2001007416A1 (de) * 1999-07-28 2001-02-01 Lonza Ag Verfahren zur herstellung von pyridazincarbonsäurederivaten
CN105859613A (zh) * 2016-03-31 2016-08-17 常州大学 一种4,5,6-三氯-n-（2,3-二氟苯基）-2-（3-（三氟甲基）苯氧基）烟酰胺合成方法
WO2021117767A1 (ja) * 2019-12-10 2021-06-17 田辺三菱製薬株式会社 含窒素ヘテロアリールカルボキサミド酢酸誘導体の製造方法
EP4143158B1 (en) * 2020-04-29 2025-10-01 Basf Se Preparation of aromatic carboxyamides by palladium-catalyzed carbonylation reaction
GB2611348A (en) * 2021-10-01 2023-04-05 Rotam Agrochem Int Co Ltd A crystalline form of diflufenican, a process for its preparation and use of the same

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CN1169991A (zh) 1998-01-14
NO971386D0 (no) 1997-03-24
SK283920B6 (sk) 2004-05-04
HUP9700666A3 (en) 1999-09-28
ATE262511T1 (de) 2004-04-15
DE59711437D1 (de) 2004-04-29
HU225024B1 (en) 2006-05-29
DK0802189T3 (da) 2004-07-05
PT802189E (pt) 2004-07-30
HUP9700666A2 (en) 1997-12-29
EP0802189A3 (de) 1999-01-13
EP0802189A2 (de) 1997-10-22
CZ93497A3 (en) 1997-10-15
CZ294344B6 (cs) 2004-12-15
NO307703B1 (no) 2000-05-15
JPH1017552A (ja) 1998-01-20
PL319172A1 (en) 1997-09-29
CA2200898C (en) 2007-03-06
SK37097A3 (en) 1998-01-14
US6635766B1 (en) 2003-10-21
SI0802189T1 (en) 2004-10-31
CN1100760C (zh) 2003-02-05
KR100673348B1 (ko) 2007-05-14
CA2200898A1 (en) 1997-09-28
NO971386L (no) 1997-09-29
PL189843B1 (pl) 2005-09-30
KR970065520A (ko) 1997-10-13
ES2215204T3 (es) 2004-10-01

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